/Engine/Source/Editor/Sequencer/Public/MVVM/ViewModels/SequencerEditorViewModel.h
Creates the track-area for this editor.
virtual [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FTrackAreaViewModel](API\Editor\SequencerCore\MVVM\ViewModels\FTrackAreaViewModel) > CreateTrackAreaImpl()